body {
    font-size: 24px;
}

button {
    width: 80px;
    height: 45px;
    font-size: 20px;
}

.active {
    color: red;
}

.big {
    font-weight: bolder;
    font-size: 64px;
}

.border1 {
    border: 1px solid gray;
}
